Pushing up the easy-axis magnetic anisotropy and relaxation times in trigonal prismatic CoII mononuclear SMMs by molecular structure design

Aritz Landart-Gereka; María Mar Quesada-Moreno; María A Palacios; Ismael F Díaz-Ortega; Hiroyuki Nojiri; Mykhaylo Ozerov; J Krzystek; Enrique Colacio

doi:10.1039/d2cc06012d

Pushing up the easy-axis magnetic anisotropy and relaxation times in trigonal prismatic Co^II mononuclear SMMs by molecular structure design

Chem Commun (Camb). 2023 Jan 19;59(7):952-955. doi: 10.1039/d2cc06012d.

Authors

Aritz Landart-Gereka¹, María Mar Quesada-Moreno¹, María A Palacios¹, Ismael F Díaz-Ortega^{2

3}, Hiroyuki Nojiri², Mykhaylo Ozerov⁴, J Krzystek⁴, Enrique Colacio¹

Affiliations

¹ Departamento de Química Inorgánica, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain. ecolacio@ugr.es.
² Institute for Materials Research, Tohoku University, Katahira, Sendai, 980-8577, Japan.
³ Departamento de Química y Física-CIESOL, Universidad de Almería, Ctra. Sacramento s/n, 04120, Almería, Spain.
⁴ National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, USA.

PMID: 36597978
DOI: 10.1039/d2cc06012d

Abstract

The replacement of pyridine by 1-methyl-imidazol in the arms of a N₆-tripodal ligand allows preparing two new Co^II complexes with quasi-ideal triangular prismatic geometry, which behave as SIMs (Single Ion Magnets) at zero dc field with enhanced axial magnetic anisotropy, magnetic relaxation times and magnetic hysteresis.